Effect of weak disorder in multi-Weyl semimetals

• 作者: Bo Fu Qinwei Shi Xiaoping Wang Zhen Ning
• 来源期刊: 中国物理B（英文版）
• 关键词: Weyl semimetals renormalization group quasiparticle conductivity
• 年，卷（期）: 2020,（7）
• 页码范围: 211-217
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/ab9612

摘要

We study the behaviors of three-dimensional double and triple Weyl fermions in the presence of weak random potential.By performing the Wilsonian renormalization group (RG) analysis,we reveal that the quasiparticle experiences strong renormalization which leads to the modification of the density of states and quasiparticle residue.We further utilize the RG analysis to calculate the classical conductivity and show that the diffusive transport is substantially corrected due to the novel behavior of the quasiparticle and can be directly measured by experiments.